CN113156183A - Two-way voltage detection device on intelligence post - Google Patents
Two-way voltage detection device on intelligence post Download PDFInfo
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- CN113156183A CN113156183A CN202110251211.2A CN202110251211A CN113156183A CN 113156183 A CN113156183 A CN 113156183A CN 202110251211 A CN202110251211 A CN 202110251211A CN 113156183 A CN113156183 A CN 113156183A
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- 238000001514 detection method Methods 0.000 title claims abstract description 11
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 10
- 238000004891 communication Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- Automation & Control Theory (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention provides an intelligent on-pole bidirectional voltage detection device, which relates to the field of electric power automation and comprises the following components: the switching device is connected in series in a distribution line and used for controlling the on-off of the distribution line according to a control command; the acquisition module is connected with the switching device and is used for acquiring real-time voltages at two ends of the switching device; and the control terminal is respectively connected with the switching device and the acquisition module and used for judging the voltage states at the two ends of the switching device according to the real-time voltages at the two ends of the switching device and generating a corresponding control instruction according to a preset automatic control logic program so as to control the on-off of the distribution line through the switching device. The automatic on-off control system has high automation degree, avoids manual opening and closing of the switch device, effectively reduces labor cost, improves on-off control efficiency of the distribution line, and is beneficial to popularization.
Description
Technical Field
The invention relates to the field of electric power automation, in particular to an intelligent on-pole bidirectional voltage detection device.
Background
The pole-mounted switch is a safety switch used on a telegraph pole to guarantee the electricity utilization safety, and mainly has the function of isolating faults of overhead lines. In a domestic power distribution network, a certain number of pole-mounted switches are mounted on an overhead line. In the routine maintenance process, the traditional pole-mounted switch needs a maintainer to climb a pole to the pole-mounted switch to perform switching-off and switching-on operations, and is very inconvenient. In the prior art, the intelligent pole-mounted switch cannot automatically realize on-off control of the overhead distribution line according to the voltage at two ends of the intelligent pole-mounted switch.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an intelligent on-pole bidirectional voltage detection device, which comprises:
the switching device is connected in series in a distribution line and used for controlling the on-off of the distribution line according to a control command;
the acquisition module is connected with the switching device and is used for acquiring real-time voltages at two ends of the switching device;
and the control terminal is respectively connected with the switching device and the acquisition module and used for judging the voltage states of the two ends of the switching device according to the real-time voltages of the two ends of the switching device and generating a corresponding control instruction according to a preset automatic control logic program so as to control the switching device to control the on-off of the distribution line.
Preferably, the device further comprises a locking device, wherein the locking device is in signal connection with the control terminal and is used for locking the switch device according to a locking instruction.
Preferably, the control terminal includes:
the processing unit is used for judging and obtaining voltage states at two ends of the switching device according to the real-time voltages at two ends of the switching device and generating corresponding control instructions and locking instructions according to the automatic control logic program;
and the communication unit is connected with the processing unit and is used for respectively sending the control command and the locking command to the switching device and the locking device.
Preferably, the control terminal further comprises a timing unit connected to the processing unit for recording time.
Preferably, the control device further comprises a power module connected to the control terminal and used for providing power for the control terminal.
Preferably, the processing unit includes:
the first processing subunit is used for generating a first locking instruction when the voltage state indicates that the voltage exists at the two ends of the switching device, so as to control the locking device to release locking after a first preset time period;
the second processing subunit is used for generating a first control instruction to control the switching device to conduct the distribution line when the voltage state indicates that one end of the switching device is powered off after a second preset time period;
the third processing subunit is configured to, in the second preset time period, generate a second control instruction to control the switching device to conduct the power distribution line when the voltage state indicates that voltages exist at two ends of the switching device, and generate a second locking instruction to control the locking device to lock the switching device;
and the fourth processing subunit is used for generating a third locking instruction to control the switch locking device to lock the switch device when the voltage state indicates that the power-off end of the switch device has the instantaneous voltage and the duration time exceeds a power failure time limit in the second preset time period.
Preferably, the processing unit further includes:
the fifth processing subunit is used for generating a third control instruction to control the switching device to disconnect the power distribution line when the voltage state indicates that voltage loss exists at two ends of the switching device;
the sixth processing subunit is configured to, when the voltage state indicates that no voltage exists at the two ends of the switching device and the locking device is not locked, generate a fourth control instruction to control the switching device to turn on the distribution line after a third preset time period when the voltage exists at one end of the switching device;
the seventh processing subunit is configured to generate a fourth locking instruction to control the switch locking device to lock the switch device when the voltage state indicates that an instantaneous voltage exists at a power loss end of the switch device in the third preset time period;
and the eighth processing subunit is configured to generate a fifth locking instruction to control the switch locking device to lock the switch device when the voltage state indicates that voltages exist at two ends of the switch device in the third preset time period.
Preferably, the switching device includes:
the upper end of the spring mechanism is fixedly connected with an insulating pull rod;
an arc extinguish chamber is fixedly arranged at the upper end of the insulating pull rod;
the upper end of the arc extinguish chamber is connected with an upper incoming line, and the right end of the arc extinguish chamber is connected with a lower outgoing line.
Preferably, the switch device further comprises a case, and the spring mechanism, the insulating pull rod and the arc extinguishing chamber are all arranged inside the case.
The technical scheme has the following advantages or beneficial effects:
according to the technical scheme, the real-time voltages at two ends of the switching device are collected, different control instructions are generated according to the voltage states, and on-off control of the distribution line is achieved through the switching device. This technical scheme degree of automation is high, avoids artifical switching device that opens and shuts, effectively reduces the human cost, promotes the on-off control efficiency to the distribution lines, does benefit to the popularization.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a bi-directional voltage detection device on a smart pole according to a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of a general structure of a processing unit according to a preferred embodiment of the present invention;
fig. 3 is a schematic diagram of a bi-directional voltage detection device on a smart column according to a preferred embodiment of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present invention is not limited to this embodiment, and other embodiments may be included within the scope of the present invention as long as the gist of the present invention is satisfied.
In accordance with the above-mentioned problems of the prior art, there is provided an intelligent bi-directional voltage detecting apparatus on a column, as shown in fig. 1, including:
the switching device 1 is connected in series in a distribution line and used for controlling the on-off of the distribution line according to a control instruction;
the acquisition module 2 is connected with the switch device 1 and is used for acquiring real-time voltages at two ends of the switch device 1;
and the control terminal 3 is respectively connected with the switch device 1 and the acquisition module 2, and is used for judging the voltage states at the two ends of the switch device 1 according to the real-time voltages at the two ends of the switch device 1 and generating a corresponding control instruction according to a preset automatic control logic program so as to control the on-off of the distribution line through the switch device 1.
Specifically, in this embodiment, the acquisition module 2 is arranged to acquire the real-time voltages at the two ends of the switch device 1 and feed the real-time voltages back to the control terminal 3, the control terminal 3 determines the voltage states at the two ends of the switch device 1 according to the real-time voltages at the two ends of the switch device 1, and then generates a corresponding switch control instruction according to a preset automation control logic program and sends the switch control instruction to the switch device 1, so that the switch device 1 is used to control the on-off of the distribution line. The degree of automation of this technical scheme is high, avoids artifical switching device 1 that opens and shuts, effectively reduces the cost of labor, promotes the on-off control efficiency to the distribution lines, does benefit to the popularization.
Preferably, the collecting module 2 may be a voltage sensor, and is connected to the switch device 1 through a connection terminal, so as to collect the real-time voltage.
In the preferred embodiment of the present invention, the switch device further comprises a locking device 4, which is connected to the control terminal 3 by signals and is used for locking the switch device 1 according to a locking command.
Specifically, in this embodiment, the control terminal 3 generates a corresponding latch instruction according to the voltage state at both ends of the switching device 1, and sends the latch instruction to the latch device 4. Blocking device 4 locks switching device 1 after receiving corresponding locking instruction, prevents that switching device 1 from opening and shutting by mistake, causes adverse effect to the distribution lines, effectively promotes this technical scheme's security.
In a preferred embodiment of the present invention, the control terminal 3 includes:
the processing unit 31 is used for judging and obtaining the voltage states at the two ends of the switching device 1 according to the real-time voltages at the two ends of the switching device 1 and generating corresponding control instructions and locking instructions according to an automatic control logic program;
and a communication unit 32 connected to the processing unit 31 for transmitting the control command and the locking command to the switching device 1 and the locking device 4, respectively.
Specifically, in this embodiment, the voltage states at the two ends of the switch device 1 are determined according to the real-time voltages at the two ends of the switch by the setting processing unit 31, and then the voltage states at the two ends of the switch device 1 are input into the automatic control logic program, so as to generate corresponding control instructions and locking instructions, and the control instructions are respectively sent to the switch device 1 and the locking device 4 through the communication unit 32, thereby implementing on-off control of the distribution line.
Preferably, the processing unit 31 may be a core arithmetic chip of the control terminal 3.
In a preferred embodiment of the present invention, the control terminal 3 further comprises a timing unit 33 connected to the processing unit 31 for recording time.
Specifically, in this embodiment, the timing unit 33 may be a real-time clock, which is used for timing when the core operation chip runs.
In the preferred embodiment of the present invention, the power module 5 is connected to the control terminal 3 and is used for providing power to the control terminal 3.
In a preferred embodiment of the present invention, as shown in fig. 2, the processing unit 31 includes:
the first processing subunit 311 is configured to generate a first locking instruction when the voltage state indicates that a voltage exists at both ends of the switching device 1 within a first preset time period, so as to control the locking device 4 to lock the switching device 1, and release the locking after the first preset time period;
the second processing subunit 312 is configured to generate a first control instruction to control the switching device 1 to turn on the distribution line when the voltage state indicates that one end of the switching device 1 is powered off after a second preset time period;
the third processing subunit 313 is configured to, in a second preset time period, generate a second control instruction to control the switching device 1 to conduct the power distribution line and generate a second locking instruction to control the locking device 4 to lock the switching device 1, where the voltage state indicates that the power-losing end of the switching device 1 recovers voltage and the power-losing time exceeds a power-losing time limit;
and the fourth processing subunit 314 is configured to generate a third locking instruction to control the switch locking device to lock the switch device 1 when, in a second preset time period, the voltage state indicates that an instantaneous voltage exists at the power loss end of the switch device 1 and the duration of the instantaneous voltage exceeds the power failure time limit. Specifically, in this embodiment, the first preset time period is a Y time limit, and the time period is used for performing fault detection. The second preset time period is XL time limit, and the power failure time limit is Z time limit. When the switching device 1 acts as a tie switch: the first processing subunit 311 generates a first lock instruction to control the locking device 4 to lock the switching device 1 and release the locking after the Y time limit when the voltage state indicates that the voltage exists at both ends of the switching device 1 within the Y time limit, continues the timing of the Y time limit after the power supply is restored if a power failure accident smaller than the Z time limit occurs in the Y time limit, and stops the timing of the Y time limit and clears the current timing of the Y time limit if a power failure accident not smaller than the Z time limit occurs in the Y time limit. After the Y time limit timing is finished, the voltage state indicates that one end of the two ends of the switch device 1 loses power, and then XL time limit timing is started. After XL timing is over, the second processing subunit 312 generates a first control command and sends it to the switching device 1 to control the power distribution line to be turned on. And if the voltage at the power-loss end is recovered in the Z time limit, timing is stopped and the XL time limit is cleared. In the process of timing by XL time limit, if the voltage at the power loss end is recovered after the Z time limit is ended, namely the power loss time exceeds the Z time limit, the XL time limit stops timing and is cleared, meanwhile, the third processing subunit 313 generates a second control instruction to control the switching device 1 to conduct a power distribution line, generates a second locking instruction to control the locking device 4 to lock the switching device 1, and simultaneously, the Y realizes the start of timing, and after the Y realizes the timing, the locking state of the locking device 4 is automatically released; within the XL time limit, if the power loss end of the switch device 1 has instantaneous voltage and the duration is within the Z time limit, the XL time limit continues to count; if the instantaneous voltage exists at the power-off end of the switch device 1 and the duration exceeds the Z time limit, the XL time limit is stopped and cleared, and meanwhile, the fourth processing subunit 314 controls the locking device to lock.
In a preferred embodiment of the present invention, the processing unit 31 further includes:
the fifth processing subunit 315 is configured to generate a third control instruction to control the switching device 1 to disconnect the distribution line when the voltage status indicates that there is a voltage loss across the switching device 1;
a sixth processing subunit 316, configured to, in a voltage state indicating that no voltage exists at two ends of the switching device 1 and the locking device 4 is not in a locked state, generate a fourth control instruction when a voltage exists at one end of the switching device 1, so as to control the switching device 1 to turn on the power distribution line after a third preset time period;
the seventh processing subunit 317 is configured to generate a fourth locking instruction to control the switch locking device to lock the switch device 1 when the voltage state indicates that the transient voltage exists at the power-off end of the switch device 1 within the third preset time period;
the eighth processing subunit 318 is configured to generate a fifth locking instruction to control the switch locking device to lock the switch device 1 when the voltage status indicates that a voltage exists at both ends of the switch device 1 within the third preset time period.
Specifically, in the present embodiment, the third preset time period is an X time limit for confirming the accident type. The accident type includes a fault and a non-fault, among others. When the voltage state indicates that there is a voltage loss across the switching device 1, the fifth processing subunit 315 generates a third control instruction, and controls the switching device 1 to disconnect the distribution line. When no voltage is present at both ends of the switching device 1 and the switch locking device is not in locking, the control terminal 3 performs an X time limit to confirm the type of the accident when one end of the switching device 1 is powered on. When the switching device 1 is a section switch: after the X time limit is over, when the distribution line at the incoming call end is conducted due to non-fault, the sixth processing subunit 316 controls the switching device 1 to conduct the distribution line; when the distribution line at the incoming call end is turned on due to a fault, the sixth processing subunit 316 controls the switching device 1 to disconnect the distribution line. During the X time period, when there is a transient voltage on the side of the switching device 1 connected to the load, the seventh processing subunit 317 controls the switch blocking device to block the switching device 1. During the X time period, when there is a voltage across the switching device 1, the eighth processing subunit 318 controls the switch blocking device to block the switching device 1. If the current time T exceeds 400 milliseconds but is less than the X time limit in the X time limit, the control terminal 3 controls the locking device 4 to lock the switching device 1, forbids reverse power supply, and releases the locking after manual remote control or X realization is finished.
In a preferred embodiment of the present invention, as shown in fig. 3, the switching device 1 includes:
the upper end of the spring mechanism 11 is fixedly connected with an insulating pull rod 12;
an arc extinguish chamber 13 is fixedly arranged at the upper end of the insulating pull rod 12;
the upper end of the arc extinguish chamber 13 is connected with an upper incoming line 14, and the right end of the arc extinguish chamber 13 is connected with a lower outgoing line 15.
Specifically, in this embodiment, a current sensor 16 is sleeved on the lower outgoing line 15 for collecting real-time current. The arc extinguishing chamber 13 utilizes the excellent insulating property of the internal vacuum to enable the distribution line to rapidly extinguish arc and restrain current after the power supply is cut off, thereby avoiding accidents and accidents. The insulating pull rod 12 is used for connecting or closing the high-voltage isolating switch, so that on-off control of the distribution line is realized.
In the preferred embodiment of the present invention, the switch device 1 further includes a case 17, and the spring mechanism 11, the insulating rod 12, and the arc-extinguishing chamber 13 are disposed inside the case.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a two-way voltage detection device on intelligence post which characterized in that includes:
the switching device is connected in series in a distribution line and used for controlling the on-off of the distribution line according to a control command;
the acquisition module is connected with the switching device and is used for acquiring real-time voltages at two ends of the switching device;
and the control terminal is respectively connected with the switching device and the acquisition module and used for judging the voltage states of the two ends of the switching device according to the real-time voltages of the two ends of the switching device and generating a corresponding control instruction according to a preset automatic control logic program so as to control the on-off of the distribution line through the switching device.
2. The intelligent on-pole bidirectional voltage detecting device of claim 1, further comprising a locking device in signal connection with the control terminal for locking the switch device according to a locking command.
3. The intelligent on-pole bidirectional voltage detecting device of claim 1, wherein the control terminal comprises:
the processing unit is used for judging and obtaining voltage states at two ends of the switching device according to the real-time voltages at two ends of the switching device and generating corresponding control instructions and locking instructions according to the automatic control logic program;
and the communication unit is connected with the processing unit and is used for respectively sending the control command and the locking command to the switching device and the locking device.
4. The intelligent on-pole bidirectional voltage detecting device of claim 1, wherein the control terminal further comprises a timing unit connected to the processing unit for recording time.
5. The intelligent on-pole bidirectional voltage detection device of claim 1, further comprising a power module connected to the control terminal for providing power to the control terminal.
6. The intelligent on-pole bidirectional voltage detecting device of claim 2, wherein the processing unit comprises:
the first processing subunit is configured to generate a first locking instruction to control the locking device to lock the switching device when the voltage state indicates that voltages exist at two ends of the switching device within a first preset time period, and release the locking after the first preset time period;
the second processing subunit is used for generating a first control instruction to control the switching device to conduct the distribution line when the voltage state indicates that one end of the switching device loses power after a second preset time period;
the third processing subunit is configured to generate a second control instruction to control the switching device to conduct the power distribution line and generate a second locking instruction to control the locking device to lock the switching device when the voltage state indicates that the voltage at the power-off end of the switching device recovers and the power-off time exceeds a power-off time limit in the second preset time period;
and the fourth processing subunit is configured to generate a third locking instruction to control the switch locking device to lock the switch device when the voltage state indicates that an instantaneous voltage exists at the power failure end of the switch device and the duration of the instantaneous voltage exceeds the power failure time limit in the second preset time period.
7. The intelligent on-pole bidirectional voltage detecting device of claim 2, wherein the processing unit further comprises:
the fifth processing subunit is used for generating a third control instruction to control the switching device to disconnect the distribution line when the voltage state indicates that voltage loss exists at two ends of the switching device;
the sixth processing subunit is configured to, in a voltage state indicating that no voltage exists at two ends of the switching device and the locking device is not locked, generate a fourth control instruction to control the switching device to turn on the distribution line after a third preset time period when a voltage exists at one end of the switching device;
the seventh processing subunit is configured to generate a fourth locking instruction to control the switch locking device to lock the switch device when the voltage state indicates that an instantaneous voltage exists at a power loss end of the switch device in the third preset time period;
and the eighth processing subunit is configured to generate a fifth locking instruction to control the switch locking device to lock the switch device when the voltage state indicates that the voltage exists at both ends of the switch device in the third preset time period.
8. The intelligent on-pole bidirectional voltage detecting device of claim 1, wherein the switching device comprises:
the upper end of the spring mechanism is fixedly connected with an insulating pull rod;
an arc extinguish chamber is fixedly arranged at the upper end of the insulating pull rod;
the upper end of the arc extinguish chamber is connected with an upper incoming line, and the right end of the arc extinguish chamber is connected with a lower outgoing line.
9. The intelligent bi-directional voltage detection device on a pole of claim 1, wherein the switch device further comprises a case, and the spring mechanism, the insulating pull rod and the arc extinguishing chamber are all disposed inside the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110251211.2A CN113156183A (en) | 2021-03-08 | 2021-03-08 | Two-way voltage detection device on intelligence post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110251211.2A CN113156183A (en) | 2021-03-08 | 2021-03-08 | Two-way voltage detection device on intelligence post |
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| Publication Number | Publication Date |
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| CN113156183A true CN113156183A (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110251211.2A Pending CN113156183A (en) | 2021-03-08 | 2021-03-08 | Two-way voltage detection device on intelligence post |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449865A (en) * | 2015-12-17 | 2016-03-30 | 南京因泰莱电器股份有限公司 | Intelligent (feeder terminal unit) FTU used for fault positioning and isolating for distribution network |
| CN206865228U (en) * | 2017-05-26 | 2018-01-09 | 珠海思创电气有限公司 | The Standard type block switch protection control device of integrated voltage-type and current mode |
| CN109920690A (en) * | 2019-04-19 | 2019-06-21 | 河北润志电气设备有限公司 | A kind of pole-mounted circuit breaker with built-in disconnector |
| CN111711276A (en) * | 2020-07-23 | 2020-09-25 | 珠海康晋电气股份有限公司 | Distribution automation intelligence feeder terminal |
-
2021
- 2021-03-08 CN CN202110251211.2A patent/CN113156183A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449865A (en) * | 2015-12-17 | 2016-03-30 | 南京因泰莱电器股份有限公司 | Intelligent (feeder terminal unit) FTU used for fault positioning and isolating for distribution network |
| CN206865228U (en) * | 2017-05-26 | 2018-01-09 | 珠海思创电气有限公司 | The Standard type block switch protection control device of integrated voltage-type and current mode |
| CN109920690A (en) * | 2019-04-19 | 2019-06-21 | 河北润志电气设备有限公司 | A kind of pole-mounted circuit breaker with built-in disconnector |
| CN111711276A (en) * | 2020-07-23 | 2020-09-25 | 珠海康晋电气股份有限公司 | Distribution automation intelligence feeder terminal |
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Application publication date: 20210723 |
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